Inking pad



` Oct. 13, 1942.

B. D. GILBERT l INKING PAD Filed Sept. 4, 1941 Patented Oct. 13, 1942 UNITED .STATES PATENT OFFICE INKING PAD Benjamin D. Gilbert, New York, N. Y.

Application September 4, 1941, Serial No. 409,519

(Cl. 91-54t5) 'l Claims.

This invention relates to an inking pad and more particularly to a readily removed inking pad adapted for use in a duplicating machine.

An object of this invention is to produce a pad having improved ink retaining and delivering characteristics.

Another object of this invention is the provision of an improved removable inking pad for duplicating machines.

A more specific object of this invention lies in the use of flocking on one side of a suitable base material having a pressure-sensitive adhesive on its other side,v for use as a removable inking pad.

Further objects and advantages of this invention will be apparent from consideration of the specification as illustrated by the accompanying drawing of the proposed embodiments of the invention, in which drawing:

Fig. 1 is a plan View of a preferred form of inking pad in accordance with this invention, cut away to show the various layers of material and adhesive forming the same;

Fig. 2 is cross-sectional View along the line 2-2 of Fig. l;

Fig. 3 is a cross-sectional view of my improved inking pad as applied to the drum of a duplicating machine; and

Fig. '4 illustrates my improved inking pad as applied, for example, to a flat support,

Figs. 1 and 2 illustrate a preferred embodiment of the combination of materials forming my improved inking pad. As there illustrated, flocking A is attached through a suitable adhesive B to a base member C, which may be formed of cloth, paper or other suitable non-stretchable material. Upon the underside of the base member C is provided a suitable pressure-sensitive adhesive D to which, in turn, is attached suitable removable backing material E. By forming the inkng pad in this manner, it is obvious that it may be readily made up in strips or sheets and when it is desired to use the same, the backing material E is removed and the inking pad, through the adhesive D is then applied to the desired support.

One manner in which the inking pad according to this invention, can be most advantageously used is in connection with duplicating machines. An example of such an arrangement is illustrated in Fig. 3 wherein the inking pad shown in Figs. 1 and 2 has been applied to the rotatable drum F of a duplicating machine, the backing E having first been removed and the inking pad applied directly to the drum F by means of the pressuresensitive adhesive D. In this manner a smooth uninterrupted inking surface is obtained and,

when the inking pad has Worn out it can be stripped off the drum without difficulty and a new pad applied in the same manner. Attention is directed to the fact that the broadest aspect of the present invention lies in applying an inking pad of any material to the drum of a duplicating machine through a pressure-sensitive adhesive; as far as applicant is aware this broad idea, avoiding the use of a special attaching device which often interferes with proper inking action, has never heretofore been used.

Obviously my improved inking pad is not limited in use to duplicating machines alone, but can be attached to any suitable support, such as the flat support Gr as indicated in Fig. 4. In this case, additional removable holding means such as tacks H can be used if desired.

Attention is also directed to the use of flocking for forming the ink-retaining and ink-delivering material of the inking pad. The use of flocking for this purpose and, in particular, flocking which extends substantially perpendicularly to the base, or radially as in the form of invention shown in Fig. 3, presents several advantages over material heretofore used, such as felt. The ink on the pad is held between the thousands of perpendicular iibers which will, of course, be spaced extremely closely together (they have been illustrated on an exaggerated scale for the sake of clarity in Figs. 2, 3 and 4). The perpendicular or radial position of the bers presents .an inking surface which acts, particularly when used on the drum of a duplicating machine, as a brush providing a smooth even flow which is not possible or attainable with pads heretofore used wherein the bers form a relatively compact mass with the individual fibers intertwined and extending in all directions.

It is believed that the description of the invention as set forth above clearly indicates that it is capable of fulfilling all of the objects primarily stated, but it is not intended that the invention be limited to the forms shown., which are to be understood as illustrative only and not as limiting, as various changes of construction and arrangement can be made, all coming within the scope of the claims which follow.

I claim: v

1..In combination, a support, and an inking pad attached to said support, said inking pad comprising a base, flocking attached to one side of said base, and a pressure-sensitive adhesive on the other side of said base for removably attaching said base to said support.

2. The combination according to claim 1, in which said support is a drum.

3. The combination according to claim 1, in which the flocking extends substantially perpendicularly to said base.

4. An inking pad comprising in combination, a base, ocking attached to one side of said base, a pressure-sensitive adhesive on the other side of said base, and a removable backing attached to said base through said adhesive, whereby in use, said backing may be removed and said pad attached to a suitable support by said adhesive, as desired.

5. The combination according to claim 4, in which said flocking extends substantially perpendicularly to said base.

6. Inking device for duplicating machines and the like including, in combination, a rotatable drum, and an inking pad adhesively and removably attached to said drum, comprising a base section, ink-retaining material attached to one side of said base section, and a pressure-sensitive adhesive on the other side of said base section for removably attaching the same to said drum.

7. The combination according to claim 6, in which said ink-retaining material comprises flocking attached to said base section in such a manner that the bers extend substantially radially of said drum.

BENJAMIN D. GILBERT. 

